package com.itao.config;

import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.reactive.ReactiveLoadBalancer;
import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClient;
import org.springframework.cloud.loadbalancer.core.RandomLoadBalancer;
import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
import org.springframework.cloud.loadbalancer.support.LoadBalancerClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;

/**
 * @Description
 * @Author sjt
 * @CreateTime 2023/03/14 10:22
 */
//@Configuration
//@LoadBalancerClient(value = "order-service", configuration = LoadBalanceConfig.class)
public class LoadBalanceConfig {

    @Bean
    public ReactiveLoadBalancer<ServiceInstance> randomLoadBalancer(
            Environment environment,
            LoadBalancerClientFactory loadBalancerClientFactory)
    {
        String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
        // 随机轮询
        return new RandomLoadBalancer(
                loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class),
                name
        );
    }
}
